Sounding mechanism for clocks



March 12, 1929. s. MAZUR ,704,864

SOUNDING MECHANISM FOR CLOCKS v Filed Nov. 1926 Patented Mar. 12, 1929.

UNITED STATES 1,704,864 PATENT orr cr...

SAMUEL MAZUR, or BUFFALO, NEW YORK, nssreNon TO ran SESSIONS Cross: UOM-PANY, or FORESTVILLE, CONNECTICUT, A OORPGRATION'OF CONNECTICUT.

i SOUNDING MECHANISM FORCLOCKS.

Original application filed December 31,1924,

November 1, 1926.

This application is a division of application Serial No. 759,204,filedDecember 31, 1924. i r

In the accompanying drawings Figure l is a fragmentaryelevation, partlyin section, of a clock mechanisn'i embodying my improvements. Figure 2is an end view of the sounding device. Figure 3 is a vertical sectiontaken one line 33, Fig. 1. Figure 4 is a vertical section taken one linell, Fig. 1.

Similar characters of reference indicate like parts in the severalfiguresof the drawings.

On a suitable support such as the bottom 10 of the enclosing casing ofthe clock is arranged a metal chime or bell stand which in the presentinstance consists of a base 11 secured to the bottom by screws 12 and astandard 13 rising from this base. From the upper part of this standard.projects one or more chime or bell rods of different tones which areadapted to be struck by a hann mer mechanism and thus audibly announcethe time. of the day. In order to provide a solid and substantialsupport for these chime rods the standard is made from a comparativelylarge mass of metal. However, to permit the chime rods to vibrate morefreely when struck a slot or notch 14tis formed on the rear side of thestandard between its upper and lower ends so that it opens in adirection opposite to the front side of the standard from which thechime rods project.

This forms a comparatively slender connection between the upper andlower parts of the standard and causes the chime rods to produce agreater volume of tone than otherwise would be the case.

Although the chime rods may be mounted on the chime stand in variousways it is preferable to mount the same in the following manner:

In the upper part of the standard are provided a plurality of mountingopenings, one for each chime rod,there being two of the latter in thepresent instance which are of.

Serial No. 759,204. Eivided and this application filed Serial No.145,454.

different length and tone. Each of these mounting openings extendsthrough the standard from its front side to its rear side and consistsof a rear part 15 which is cylindrical and a front part 16 "which isconical and flares from the cylindrical part forwardly to thefront sideof the standard. Each chime rod preferably constructedof. metal which isround in cross section and the same comprises an inner or front body 17,a rear shank l8, and an intermediate neck 19 connecting the body andshank. The body is con'iparatively long and forms the main part of thechime rod. The shank is comparatively short and is secured in thecylindrical. part15 of. the. mounting openingin the staml. i conicalform and tapers rearwardly from the body of the rod to the shankthereof. At the rear small end of the neck the same is joined with thefront end of the shank by an abrupt shoulder 20.

By thus making the front part 16 of flar ing or trun'ipe" shape thesound of the chime rod is spread and thus increases the volume of thesame. By constructing the junction of the reduced. neck of the chime rodwith the relatively large shank of the same by an abrupt or squareshoulder the vibrating capacity of the rod is increased, resulting ingreater resonance of the red when the same is struck by a. hammer- Eachof the chime rods is adapted to be struck adjacent to its fixed end by ahammer mechanism having a hammer head 21 of metal and a facing 22 ofleather on said head, which facing is adapted to hit the chime rod andthus vibrate the same and cause the rod to sound. Each of these hammerheads is mounted on the outer or lower arm 23 of, a hammer lever,theinner'or upper, arm 24k of which is adapted to-be en inc neck of thechime rod is of 26 which receives a horizontal pivot pin 2-7 and thusforms the axis about which the hammer lever turns. This hammer lever maybe secured to its hub in any suitable manner but preferably by placingthis lever in a notch 28 in one side of the respective .hub and thensecuring the lever in this notch either by soldering or closing orpinching the metal of the hub against opposite sides of the hammer sothat the latter is held in the hub by friction. The hubs of both hammerlevers mounted on the same pivot pin 27 and the latter is mounted on ahanger 29 depending from the lower part of the main frame 30. Themovement of the hammer levers in the direction for engaging the facingsof the hammer heads with the chime rods is preferably limited by abuffer 31 which normally arrests each hammer lever in a position inwhich its hammer head is out of contact with the respective chime red,as shown in Fig. 1, but which permits the hammer lever to springsuiliciently to engage its hammer head with the chime rod andthenrebound out of engagement therefrom. This buffer is preferablysecured to the lower part of the hanger 29 in position to be engaged bythe inner arm of the respective hammer lever. The outer arm of eachhammer lever is preferably normally arranged in a horizon tal positionor nearly so while the inner arm thereof is bent upwardly into angularform and terminates in the space adjacent to the time mechanism andstriking mechanism. The motion for actuating the hammer levers isderived from any suitable source and transmitted to trip arms 32, eachof which has a later lly projecting finger 33 engaging with the inner orupper arm 2&- of one of the hammer levers. As the striking mech anismoperates the trip arms 32 are moved toward the inner arms of the hammerlevers and thereby cause the latter to be turned in the direction forraising the hammers from are preferably the chime rods and when the triparms clear the hammer levers the latter are returned to the startingposition by the returnmovement of the hammer levers the front or outerarms of which descend under t is weight of the hammer heads thereon.

The striking mechanism is of simple, in expensive and durableconstruction, and the chime rods are so mounted that tones of greatervolume are produced.

I claim as my invention:

1. A chiming device for clocks comprising a stand adapted to be mountedat one end on a support and to carry a chime rod on its opposite end andprovided between its ends and on the side opposite to the rod, with atransverse slit so that one part of the stand freely overhangs anotherpart thereof;

2. A chiming device for cloc s comprising a stand having a base adaptedto be secured to a support, and a standard rising from said base andprovided at its upper end with an openi" and on its rear side betweenits upper and lower ends with a horizontal slot, and a chime rod securedat one end in the opening of said standard and projecting forwardly fromthe standard.

A chiming device for clocks comprising a stand provided with an openingwhich flares from its rear end to its front end and a chime rod arrangedin said opening and extending with its front part outwardly from thelarge end of said opening and secured with its rear end to said stand inthe small end of said opening.

1-. ii. chiming device for clocks comprising a stand having an openingwhich has a cylindrical rear part and a conical front part flaringforwardly from said cylindrical part, and a chime rod arrangedinsaidopening and extending forwardly therefrom and secured in thecylindrical part thereof.

In testimony whereof I hereby ailixmy signature.

' SAMUEL MAZUB.

